Modeling the 2017 September 10 Long Duration Gamma Ray Flare

Document Type

Conference Proceeding

Publication Date

7-2-2021

Abstract

The large flares from 2017 September 4 to 10 were significant microwave events with revealing multi-wavelength images of the flare environment. The event on September 10 was a large long-duration, gamma-ray flare (LDGRF). The event also produced a Ground Level Enhancement (GLE). Using the constraints from the microwave imaging data from the Expanded Owens Valley Solar Array (EOVSA) we interpret and model the behavior of the energetic-flare protons of September 10 as measured with the Large Area Telescope (LAT) on the Fermi mission. We do this in the context of stochastic acceleration in a large coronal bipolar structure to produce the high-energy long-duration gamma-ray emission. Our preliminary analysis suggests that the acceleration of the GeV protons takes place in a large structure about 1.4 R☉ in length. The requirements for the magnetic field and turbulence in this structure will be presented.

Identifier

85214058635 (Scopus)

Publication Title

Proceedings of Science

e-ISSN

18248039

Volume

358

Grant

80NSSC18K1128

Fund Ref

National Science Foundation

This document is currently not available here.

Share

COinS